I suspect you will need to analyse the statistics to see just how often that very long range capability was needed since 2015 - perhaps you don't need so many big helos and could concentrate the smaller ones with better hover performance where they are needed.
As I said above in not so many words- spot on Crab. H145 and 175 for example...reliable, cost-effective and available.
The UK is not exactly awash with surplus cash and the cheapest bid that meets the requirement will win (obviously). Draken and Airbus will take some beating as Leonardo products cost more to buy and more to fly, and as for the S92....